Question

In each situation of column -I a uniform disc of mass m and radius R rolls on a rough fixed horizontal surface as shown At `t=0` (initially)the angular velocity of disc is omega_(0) and velocity of centre of mass of disc is v_(0) (in horizontal direction). The relation between v_(0) and `omega_(0)` and the initial sense of rotation is given for each situation in column-I then match the statement in column-I with the corresponding results in column-II.

Answer 1

Correct Answer - [(A)PQR(B)PQR(C)PQ(D)PQR]
(P) Torque due to friction in zero about A so that angular momentum will be conserved in all cases and also direction of friction depends on relation between `v_(0)` and `omega_(0)R` and among `v_(0)` and `omega_(0)R` which will become zero first